Incorrect access control in the getPortForwardRules function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to obtain… (CVE-2026-51661)
Description
An incorrect access control vulnerability exists in the getPortForwardRules function of TOTOLINK T6 firmware version 4.1.5cu.748_B20211015. This flaw allows unauthenticated attackers to retrieve port-forwarding rules by sending a crafted POST request to the /cgi-bin/cstecgi.cgi endpoint. No CVSS score is available for this issue, and no patch or remediation information has been provided.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability in TOTOLINK T6 4.1.5cu.748_B20211015 is due to improper access control in the getPortForwardRules function. An attacker can exploit this by sending a specially crafted POST request to the /cgi-bin/cstecgi.cgi CGI endpoint, which results in unauthorized disclosure of port-forwarding rules. This could potentially expose network configuration details without requiring authentication.
Potential Impact
The impact is unauthorized disclosure of port-forwarding rules, which may reveal sensitive network configuration information to unauthenticated attackers. This could aid attackers in planning further attacks but does not directly indicate remote code execution or denial of service.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or workaround information is provided at this time.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-24g8-x36j-cf39
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-51661"]
Threat ID: 6a92f809acd9273b49e90b03
Added to database: 08/29/2026, 15:17:29 UTC
Last enriched: 09/09/2026, 19:08:32 UTC
Last updated: 10/12/2026, 06:48:17 UTC
Views: 33
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.